From: Dinghao Liu <dinghao.liu@zju.edu.cn>
To: dinghao.liu@zju.edu.cn, kjlu@umn.edu
Cc: Laxman Dewangan <ldewangan@nvidia.com>,
Mark Brown <broonie@kernel.org>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
linux-spi@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] [v2] spi: tegra20-sflash: Fix runtime PM imbalance on error
Date: Sat, 23 May 2020 20:47:58 +0800 [thread overview]
Message-ID: <20200523124758.28604-1-dinghao.liu@zju.edu.cn> (raw)
pm_runtime_get_sync() increments the runtime PM usage counter even
when it returns an error code. Thus a pairing decrement is needed on
the error handling path to keep the counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
---
Changelog:
v2: - Use pm_runtime_put_noidle() instead of pm_runtime_put().
---
drivers/spi/spi-tegra20-sflash.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 514429379206..02cf5f463ba6 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -491,6 +491,7 @@ static int tegra_sflash_probe(struct platform_device *pdev)
ret = pm_runtime_get_sync(&pdev->dev);
if (ret < 0) {
dev_err(&pdev->dev, "pm runtime get failed, e = %d\n", ret);
+ pm_runtime_put_noidle(&pdev->dev);
goto exit_pm_disable;
}
--
2.17.1
next reply other threads:[~2020-05-23 12:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-23 12:47 Dinghao Liu [this message]
2020-05-28 13:08 ` [PATCH] [v2] spi: tegra20-sflash: Fix runtime PM imbalance on error Mark Brown
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200523124758.28604-1-dinghao.liu@zju.edu.cn \
--to=dinghao.liu@zju.edu.cn \
--cc=broonie@kernel.org \
--cc=jonathanh@nvidia.com \
--cc=kjlu@umn.edu \
--cc=ldewangan@nvidia.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-spi@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=thierry.reding@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).